Seiko Cal. 4477 - 336

This Spring Drive model from 1983 features a 37mm Titanium case. It features a Silver dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-66bcb753bb4f]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

37mm

Case Thickness

14.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

90m

Dial Color

Silver

Jewels

24j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1983

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